We can get files last modified date/time files in your system by the command.

The below command will find all modified files in the current directory between  date 17.07.2015 time 01:00 to date 17.07.2015 time 8.00

#  find . -newermt "2015-07-17 01:00" ! -newermt  "2015-07-18 08:00"

To find all modified files  in the last 24 hours  in a particular directory and its sub-directories:
 
#  find /directory_path -mtime -1 -ls 

# find /directory_path -mtime -1 -ls -exec stat -c "%n %y" {} \;

Find Modified files and directory  maximum  directory  depth 2

Files :
 
#  find . -maxdepth 2 -type f -exec stat -c "%n %y" {} \;


./README 2014-12-03 14:41:47.000000000 +0530

./misc/gpl-3.0.txt 2014-11-20 14:59:09.000000000 +0530

./misc/CHANGELOG 2014-12-11 22:18:00.000000000 +0530


Directores:
 
# find . -maxdepth 2 -type d -exec stat -c "%n %y" {} \;


. 2015-06-19 17:39:44.124226241 +0530

./misc 2015-06-19 17:30:05.804204643 +0530

./css 2015-06-19 17:30:05.764204642 +0530